 Section 4. Publication by Listed Authority. This section sets out deadlines for the publication of authority plans and how these relate to the timing of the publication of national plans. Subsection 1 provides that, during the first parliamentary session after the commencement of the new Act, that session being anticipated to begin in May 2016, each listed authority must publish its authority plan as soon as is reasonably practicable after the first national plan is published and in any case no later than 12 months after, anticipated to be by May 2018. Subsection 2 provides that, during subsequent sessions, a listed authority must publish its authority plan as soon as is reasonably practicable after the national plan is published and in any case no later than 6 months after such publication. As a result, authority plans should all be published within 12 months of the beginning of the parliamentary session. Under subsection 4, listed authorities are required to publish any revised plans as soon as is practicable after the revisions are made. Revised plans must clearly indicate the changes made. Subsection 6 stipulates that all authority plans are to take account of any guidance issued by the Scottish Ministers on the publication of plans. That apart, the manner of publication is left to the discretion of each authority. Subsection 5. Subsection 7 creates an exception for any authority that is not a listed authority at the commencement of a Scottish Parliament session. Subsections 1 and 2 do not apply in such circumstances and accordingly, if a new body is created mid session, it is not obliged to publish an authority plan until the following session.